Human guinea-pigs in which have been inoculato the stock of T-Virus developed in the laboratories of Caliban Cove from professor the Griffith. The subjects come train you to the use of the crews (guns of M-16 onslaught) and come organize to you in squares of three men. Of usual they are uses as armed guards you and come activated and disattivati with the sound of a fischietto. When a square enters in action the second one does not take part until before has not exausted just the task. If the continuous obbiettivo to supply stimuli and the first square have interrupted the attack (for ammunitions exausted or for hurt that the units) the second one subentrerà to its place invalidate all. If of the additional patrols of Trisquad they are found to capacity of shooting they will participate to the attack in succession. The problem of these subjects is mainly the fast decomposition accelerated from the heat and the limited sensitive and auditory abilities (that the zombie are essentially a problem of all infect to you from the T-Virus).

17 May 1998 to level 42 of the laboratory of the Spencer villa happened a terrible incident in which a plant experiences them came hit from the T-virus. A driven crazy investigator broke off the full water bathtubs in the basements flooding them and the plant through the roots absorbed the substances chemistries diluted in the water, feeding therefore the own increase. Moreover the Plant42 had developed of the liane with of bulbs to ventosa to the extremities through which it captured the own ones prede and of it it sucked the blood. After single four days Plant 42 grew to an impressive rhythm, killing quite some investigators. It seems that the only effective crews against the Plant42 are the fire and a particular chemical compound, the V-Jolt (info).

They derive from a mutation that it happens when a zombie is contaminated with one massiccia dose of T-Virus (to incirca the double quantity). Like result of such process of transformation, they on all fours have new and various characteristics like of the powerful claws for every limb and a type of movement. Regarding the zombie they are equips you of greater agility and use the language in order to perforate the thorax of the prede. They do not have eyes and they cannot see, in compensation possess a sense of the enormously developed hearing through which they localize the prede. They introduce some defects which had to the mutation, most obvious is that one of the portion of brain exposed that fuoriesce from the skull. The licker they have a metabolism so accelerated that to feed them it is an enterprise.

"Tyrant" is the coded name of a particular series of products experiences them of the Umbrella in the field of the organic crews that includes all the more destructive applications of the T-Virus, studied rising of segugio umanoide for the destruction of objects to you and in order to follow the traces of every type of odore or substance with one disumana tenacity. As the same Wesker defined it the "more powerful Bioarma to the world, the Tyrant is indestructible construction a nearly made of meat infects and logons electrical workers implanted for surgical way. The Tyrant is the effective arm more evoluta and developed from the Umbrella, but the production costs are highest and to find a human subject with necessary requirement is a problem in how much in order to create the Tyrant is necessary a remarkable intelligence, the not suitable subjects is transformed in zombie. One of the first Tyrant came developed in the laboratories of the Spencer Estate, but exploded with to it.

The Hunter came originally created in the laboratories of guided the Spencer estate from the staff from professor the William Birkin. The intention was that one to create a biological arm with considerable abilities of combat and one inaudita ferocity being used various champions of DNA. The Hunter came nourished in the estate from the caretaker who had to leave they alive animals, particular chilling was that the creatures played with the prede before eating them. Since the muscles of the low part of the body have been remarkablly upgrade to you, the Hunter succeeds to jump very up in order then to attack with its most sharp claws. E' in a position to detaching the head of the own one preda with an only blow.

An innovative type of Tyrant, tested in the plant of the Utah, the "B.o.w. Envirotest To ". E' be created using geniuses of Tyrannosaurus Rex, manipulates to you through the T-Virus. E' a being only pushed from the instinct, its only pulsione is to eat and every its action is determined from that single primordiale necessity. If something interposes between the food and the Fossil, it destroys it. He does not have impulses finalizes you to the reproduction because it is the only copy of its species.

The Nemesis has been put to point in the laboratories of the Umbrella di Loire, in France and later on studied and improved in the laboratories in the Spencer estate from Birkin and Wesker. The plan "Nemesis" was turned to go around the problem of finding of suitable subjects to the plan "Tyrant", it consisted in inserting a parasite in the system centers them of the host in such way that the parasite of it constituted intelligence. The problem that however remained was when the parasite succeeded to get rid of the body provoking some after 5 minuteren the dead women. Therefore Birkin and Wesker they tried to use Lisa Trevor implanting them in the brain the parasite that inexplicably scomparve after little time, like if it had been absorbed. The changes that later on were taken place in Lisa Trevor carried Birkin later on to work on the ambitious plan of the G-Virus. A advanced version of the Nemesis came sent in the September of 1998 to Raccoon City, programmed to recognize and to eliminate all members S.T.A.R.S. escapes you to the incident of the Spencer estate.